UFO union calling on all cabin crew to go on strike in Frankfurt, Düsseldorf and Munich

FRANKFURT—Germany’s Lufthansa AG canceled 929 flights scheduled for Monday as a strike by a major cabin-crew union was expected to continue for a third day.

Most flights to and from Frankfurt, Munich and Düsseldorf on Monday will be terminated, affecting 113,000 passengers, Lufthansa said. The carrier said it would inform affected customers of the cancellations and offer alternatives when possible.